What are the levels of structural organization and body systems?
Answer: Chemical, cellular, tissue, organ, organ system, organism level
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Which connective tissue cells become activated and produce antibodies when exposed to foreign materials?
A. Plasma cells B. Fixed macrophages C. Mast cells D. Fibroblasts E. Mesenchymal cells
The first location of long bone formation begins in an area called (the)
A) primary ossification center. B) Haversian system. C) spicule. D) secondary ossification center. E) trabecula.
Hemoglobin
a. is found in the nuclei of red blood cells b. contains carbonic anhydrase c. can combine with O2, CO2, H+, NO, and CO d. has all of the above characteristics e. has characteristics b and c
Which of these is NOT associated with the medulla oblongata?
A. Cardiac center B. Pyramids C. Pineal glands D. Olivary nuclei